The amount of electric charge that resides on each capacitor once it is fully charged is 0.37 C.
<h3>
Total capacitance of the circuit</h3>
The total capacitance of the circuit is calculated as follows;
Capacitors in series;
1/Ct = 1/8 + 1/7.5
1/Ct = 0.25833
Ct = 3.87 mF
Capacitors is parallel;
Ct = 3.87 mF + 12 mF + 15 mF
Ct = 30.87 mF
Ct = 0.03087 F
<h3>Charge in each capacitor</h3>
Q = CV
Q = 0.03087 x 12
Q = 0.37 C
Thus, the amount of electric charge that resides on each capacitor once it is fully charged is 0.37 C.
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Contact area is not a factor of the amount of friction force acting between two bodies in contact, preventing rolling or sliding
Reasons:
- Friction force is the product of the normal reaction and the coefficient of friction.
- The coefficient of friction is higher in softer tires than hard tires which are required to be wider to reduce the pressure that can cause deformation withstood by hard tires.
- The wide tires in drag racing cars can be thought of being made from the soft compound tire material having a higher coefficient of friction that increases the friction force.
Other advantages of wide tires are;
- Shorter stopping distance
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brainly.com/question/17209968
Gravitation, gravity won't work, it has to be gravitation
Considering their pKa, we can affirm that PH₃ is a stronger acid than NH₃.
We want to compare the strength of different acids. To do so, we need to compare their pKa.
<h3>What is the pKa?</h3>
The pKa is the negative base 10 logarithm of the acid dissociation constant, Ka.
The lower the pKa, the stronger the acid.
Which comparison is correct?
- HF is a stronger acid than HCI. FALSE. The pKa of HF is 3.1. and the pKa of HCl is 6.0.
- H₂S is a stronger acid than HCI. FALSE. The pKa₁ of H₂S is 7.04. and the pKa of HCl is 6.0.
- PH₃ is a stronger acid than NH₃. TRUE. The pKa of PH₃ is -5.5 and the pKa of NH₃ is 9.9.
- NH₃ is a stronger acid than HF. FALSE. The pKa of NH₃ is 9.9 and the pKa of HF is 3.1.
Considering their pKa, we can affirm that PH₃ is a stronger acid than NH₃.
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